The word scrutiniser is playable in Words With Friends™, no blanks required. Because it is longer than 7 letters, you would have to play off an existing word or do it in several moves.
Words With Friends™ Letter Score: 16
Highest Scoring Words With Friends™ Plays In The Letters scrutiniser
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Seven Letter Word Alert: (39 words)
cistern, citrine, cretins, cruiser, cruises, cuisine, current, curries, cursers, encrust, iciness, incests, incises, inciter, incites, incrust, insects, inserts, insurer, insures, irenics, nursers, nutsier, recruit, reincur, restirs, returns, rinsers, runtier, rustics, rustier, sericin, sinters, suiters, sunrise, turners, uniters, unities, unrests